There are many compounds in any Cracker and it varies according to it's nature & use, most of the compounds are:
Copper Carbonate CuCO₃.Cu(OH)₂
Copper Chlorate Cu(ClO₃)₂.6H₂O.
Copper Chloride CuCl₂.
Copper Nitrate Cu(NO₃)₂.3H₂O.
Copper Oxide CuO.
Copper Sulfate CuSO₄.5H₂O.
Copper Sulfide CuS.
Decaborane B₁₀H₁₄
As it varies from Craker to craker, we can't tell the number of atoms for that. But, you should understand that number of atoms in it would be much more than a simple compounds 'cause it contains many heavy compounds.
Hope this helps!
